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# SOLTEK COMPUTER, INC.
SL-54U5, SL-54U1
Device Type Mainboard
Processor CX 6X86MX/IDT C6/AM K5/AM K6/AM
K6-2/Pentium/Pentium MMX
Processor Speed 133/150/166/180/200/233/266/275/333/350MHz
Chip Set VIA Apollo MVP3
Maximum Onboard 1GB (EDO & SDRAM supported)
Memory
Cache 512/1024KB
BIOS Award
I/O Options 32-bit PCI slots (3), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
connector, serial ports (2), USB connectors
(2), IR connector, AGP slot, ATX power
connector
Dimensions 240mm x 220mm
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| AGP slot | AGP | Reset switch | J1B |
|-------------------+----------+------------------+----------|
| ATX power supply | ATX | Power LED & | J1C |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN1 | Turbo LED | J1D |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | IDE interface | J2A |
| | | LED | |
|-------------------+----------+------------------+----------|
| Parallel port | CN3 | IR connector | J2B |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | Power switch | J2C |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN5 | PS/2 mouse | MS1 |
| | | interface | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN6 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|-------------------+----------+------------------+----------|
| CPU fan power | FAN | USB connector | USB |
|-------------------+----------+------------------+----------|
| Speaker | J1A | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP2 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP2 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1MB x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1MB x 36 | (1) 1MB x 64 | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2MB x 36 | None | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1MB x 36 | (1) 1MB x 64 | (1) 1MB x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2MB x 36 | (1) 1MB x 64 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2MB x 36 | (1) 2MB x 64 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4MB x 64 | None | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 2MB x 36 | (1) 2MB x 64 | (1) 1MB x 64 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4MB x 36 | (1) 1MB x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2MB x 36 | (1) 2MB x 64 | (1) 2MB x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4MB x 36 | (1) 2MB x 64 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4MB x 36 | (1) 4MB x 64 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8MB x 36 | None | None |
|------------+---------------+---------------+---------------|
| 72MB | (2) 4MB x 36 | (1) 4MB x 64 | (1) 1MB x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8MB x 36 | (1) 1MB x 64 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 4MB x 36 | (1) 4MB x 64 | (1) 2MB x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8MB x 36 | (1) 2MB x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4MB x 36 | (1) 4MB x 64 | (1) 4MB x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8MB x 36 | (1) 4MB x 64 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CONT.) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8MB x 36 | (1) 8MB x 64 | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 16MB x 36 | None | None |
|------------+---------------+---------------+---------------|
| 136MB | (2) 8MB x 36 | (1) 8MB x 64 | (1) 1MB x 64 |
|------------+---------------+---------------+---------------|
| 136MB | (2) 16MB x 36 | (1) 1MB x 64 | None |
|------------+---------------+---------------+---------------|
| 144MB | (2) 8MB x 36 | (1) 8MB x 64 | (1) 2MB x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (2) 16MB x 36 | (1) 2MB x 64 | None |
|------------+---------------+---------------+---------------|
| 160MB | (2) 8MB x 36 | (1) 8MB x 64 | (1) 4MB x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16MB x 36 | (1) 4MB x 64 | None |
|------------+---------------+---------------+---------------|
| 196MB | (2) 8MB x 36 | (1) 8MB x 64 | (1) 8MB x 64 |
|------------+---------------+---------------+---------------|
| 196MB | (2) 16MB x 36 | (1) 8MB x 64 | None |
|------------+---------------+---------------+---------------|
| 256MB | (2) 16MB x 36 | (1) 16MB x 64 | None |
|------------+---------------+---------------+---------------|
| 256MB | (2) 32MB x 36 | None | None |
|------------+---------------+---------------+---------------|
| 264MB | (2) 32MB x 36 | (1) 1MB x 64 | None |
|------------+---------------+---------------+---------------|
| 272MB | (2) 32MB x 36 | (1) 2MB x 64 | None |
|------------+---------------+---------------+---------------|
| 288MB | (2) 32MB x 36 | (1) 4MB x 64 | None |
|------------+---------------+---------------+---------------|
| 320MB | (2) 32MB x 36 | (1) 8MB x 64 | None |
|------------+---------------+---------------+---------------|
| 384MB | (2) 32MB x 36 | (1) 16MB x 64 | None |
|------------+---------------+---------------+---------------|
| 512MB | (2) 32MB x 36 | (1) 32MB x 64 | None |
|------------+---------------+---------------+---------------|
| 520MB | (2) 32MB x 36 | (1) 32MB x 64 | (1) 1MB x 64 |
|------------+---------------+---------------+---------------|
| 528MB | (2) 32MB x 36 | (1) 32MB x 64 | (1) 2MB x 64 |
|------------+---------------+---------------+---------------|
| 544MB | (2) 32MB x 36 | (1) 32MB x 64 | (1) 4MB x 64 |
|------------+---------------+---------------+---------------|
| 576MB | (2) 32MB x 36 | (1) 32MB x 64 | (1) 8MB x 64 |
|------------+---------------+---------------+---------------|
| 640MB | (2) 32MB x 36 | (1) 32MB x 64 | (1) 16MB x 64 |
|------------+---------------+---------------+---------------|
| 768MB | (2) 32MB x 36 | (1) 32MB x 64 | (1) 32MB x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SDRAM CLOCK SETTINGS |
|------------------------------------------------------------|
| SDRAM Clock Speed | JP1 | JP6 |
|---------------------+-------------------+------------------|
| » | CPU Clock | Pins 1 & 2 closed | Pins 2 & 3 |
| | | | closed |
|---+-----------------+-------------------+------------------|
| | AGP Clock | Pins 2 & 3 closed | Pins 1 & 2 |
| | (66MHz) | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Cache | Bank 0 |
|--------------------------+---------------------------------|
| 512KB | (2) 64KB x 32 |
|--------------------------+---------------------------------|
| 1024KB | (2) 128KB x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 2.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 75MHz | 2x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 75MHz | 2.5x | Off | Off | On | On |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 75MHz | 3x | Off | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 83MHz | 2.5x | Off | On | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 66MHz | 2.5x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 75MHz | 2x | Off | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 233MHz | 66MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 233MHz | 75MHz | 2.5x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 266MHz | 75MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 266MHz | 83MHz | 2.5x | On | Off | 1 & | 1 & |
| | | | | | 2 | 2 |
|------------------------------------------------------------|
| Note: Numbers designate pins that should be closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IDT C6) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | Off | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IDT C6 CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 66MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 233MHz | 66MHz | 3.5x | Off | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 266MHz | 66MHz | 4x | Off | On | 2 & | 2 & |
| | | | | | 3 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 1.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Off | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5 CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+--------+------------+-------+-------+------+------|
| 133MHz | 66MHz | 1.5x | Off | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 66MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 60MHz | 3.5x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 3.5x | Off | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6 CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+--------+------------+-------+-------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 66MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 233MHz | 60MHz | 3.5x | Off | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 266MHz | 66MHz | 3.5x | Off | On | 2 & | 2 & |
| | | | | | 3 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6-2) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 250MHz | 100MHz | 2.5x | Off | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 300MHz | 100MHz | 3x | Off | Off | Off | Off |
|---------+-----------+----------+------+------+------+------|
| 350MHz | 100MHz | 3.5x | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6-2 CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+---------+------------+-------+-------+------+-----|
| 250MHz | 100MHz | 2.5x | On | Off | 1 & | 2 & |
| | | | | | 2 | 3 |
|--------+---------+------------+-------+-------+------+-----|
| 266MHz | 66MHz | 4x | Off | On | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+---------+------------+-------+-------+------+-----|
| 300MHz | 100MHz | 3x | On | Off | 1 & | 2 & |
| | | | | | 2 | 3 |
|--------+---------+------------+-------+-------+------+-----|
| 350MHz | 100MHz | 3.5x | Off | Off | 1 & | 2 & |
| | | | | | 2 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 1.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Off | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+--------+------------+-------+-------+------+------|
| 133MHz | 66MHz | 1.5x | Off | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 66MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM MMX) |
|------------------------------------------------------------|
|CPU Speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | Off | On | On | On |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Off | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | Off | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM MMX CONT.) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | SW1/5 | SW1/6 | JP7 | JP8 |
| Speed | speed | | | | | |
|--------+--------+------------+-------+-------+------+------|
| 166MHz | 66MHz | 2.5x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 200MHz | 66MHz | 3x | On | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
|--------+--------+------------+-------+-------+------+------|
| 233MHz | 66MHz | 3.5x | Off | Off | 2 & | 2 & |
| | | | | | 3 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage (core) | JP3 |
|----------------+-------------------------------------------|
| 2.0v | Open |
|----------------+-------------------------------------------|
| 2.1v | Pins 1 & 2 closed |
|----------------+-------------------------------------------|
| 2.2v | Pins 3 & 4 closed |
|----------------+-------------------------------------------|
| 2.3v | Pins 1 & 2, 3 & 4 closed |
|----------------+-------------------------------------------|
| 2.4v | Pins 5 & 6 closed |
|----------------+-------------------------------------------|
| 2.5v | Pins 1 & 2, 5 & 6 closed |
|----------------+-------------------------------------------|
| 2.6v | Pins 3 & 4, 5 & 6 closed |
|----------------+-------------------------------------------|
| 2.7v | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|----------------+-------------------------------------------|
| 2.8v | Pins 7 & 8 closed |
|----------------+-------------------------------------------|
| 2.9v | Pins 1 & 2, 7 & 8 closed |
|----------------+-------------------------------------------|
| 3.0v | Pins 3 & 4, 7 & 8 closed |
|----------------+-------------------------------------------|
| 3.1v | Pins 1 & 2, 3 & 4, 7 & 8 closed |
|----------------+-------------------------------------------|
| 3.2v | Pins 5 & 6, 7 & 8 closed |
|----------------+-------------------------------------------|
| 3.3v | Pins 1 & 2, 5 & 6, 7 & 8 closed |
|----------------+-------------------------------------------|
| 3.4v | Pins 3 & 4, 5 & 6, 7 & 8 closed |
|----------------+-------------------------------------------|
| 3.5v | Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed |
+------------------------------------------------------------+